Serpentine Idler/Tensioner Pulley

The Dayco 89573 is a steel serpentine idler/tensioner pulley engineered to provide reliable performance for a wide range of automotive applications. With a 70mm diameter and 4 grooves, this pulley is designed to work with serpentine belt systems, contributing to smoother operation and potentially longer belt life. Constructed from durable steel, the 89573 is built to withstand the demands of engine operation. It features premium lubricated ball bearings and double high-temperature seals, which are crucial for peak bearing performance and extended service life. The pulley's specifications include a 17 mm inner bearing diameter, a 2.756-inch pulley diameter, and a 0.682-inch pulley width, with a maximum belt width capacity of 04 Rib. Dayco's idler and tensioner pulleys are built with tighter dimensional tolerances and smoother surfaces to reduce vibration. This focus on quality materials and manufacturing ensures that the 89573 meets or exceeds Original Equipment (OE) quality standards, providing a dependable replacement part.